Thyristors

What is a Thyristor?
A Thyristor is a four layer semiconductor device, also known as a silicon controlled rectifier (SCR) It is like a fast static switch and is good for controlling large amounts of power, they can also control the speed of DC motors.
A Thyristor usually consists of three electrodes: an anode (positive terminal), Cathode (negative terminal) and a gate. (You can also get thyristors with two or four leads). The gate is the main control terminal while the main current flows between the anode and cathode
The Thyristor is made of N type and P type materials. The N-type material is formed by doping an element with electrons to increase the number of negative charge-carrying electrons. The P-type material is also produced through doping, although the resulting charge-carrying electrons are positively charged. By alternating layers of P and N-type material, a semiconductor thyristor device is formed.
Thyristors are used to create a latching circuit. Thyristors can be turned on using the gate. It then turns off when the voltage across the anode-cathode drops back down to zero.
Types of Thyristor:
Silicon controlled rectifier (SCR) -The basic purpose of a SCR is to function as a switch that can turn on or off small or large amounts of power.
Silicon controlled switch (SCS) - Silicon Controlled Switch (SCS) is a device similar to a SCR, but it is designed to turn off when a positive voltage/input current pulse is applied to an additional "Anode gate"
Triac – Triac gets its name from Triode for alternating current Triacs are similar to SCRs but it conducts in both directions, (a bidirectional device). This means that it can switch AC and DC currents.
Four layer diode - A four layer diode has 2 pins and is similar to a voltage-sensitive switch. When the voltage between the two pins exceeds the breakdown voltage it turns ON, otherwise it’s OFF.
Diac- Diac is a mix of the words diode and ac switch it is similar to four-layer diode but it can conduct in both directions meaning it can contact both AC and DC currents.
Thyristors are used in applications such as motor speed controls, pressure control systems, light dimmers and liquid level regulators
What are Phase controlled Thyristors?
Thyristors are frequently used as phase-controlled current valves for AC to DC conversion and vice versa, operating at low frequencies In the conducting state, thyristors feature very low losses, making them ideal devices to efficiently control very high currents and energies.

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Omschrijving Prijs Rated Average On-State Current Thyristor Type Package Type Repetitive Peak Reverse Voltage Surge Current Rating Mounting Type Maximum Gate Trigger Current Maximum Gate Trigger Voltage Maximum Holding Current Pin Count Length Width Height Dimensions
RS-stocknr. 102-3580
FabrikantnummerBTW69-1200RG
€ 5,615
Each (In a Tube of 30)
Aantal stuks
32A SCR TOP3 1200V 610A Through Hole 80mA 1.3V 150mA 3 15.5mm 4.6mm 12.85mm 15.5 x 4.6 x 12.85mm
RS-stocknr. 714-2640
FabrikantnummerBTW69-1200RG
€ 6,52
Each
Aantal stuks
32A SCR TOP3 1200V 610A Through Hole 80mA 1.3V 150mA 3 15.5mm 4.6mm 12.85mm 15.5 x 4.6 x 12.85mm
RS-stocknr. 687-1013
FabrikantnummerX0402MF 1AA2
€ 0,706
Each (In a Pack of 10)
Aantal stuks
0.9A SCR TO-202 600V 33A Through Hole 0.2mA 0.8V 5mA 3 10.1mm 4.5mm 7.3mm 10.1 x 4.5 x 7.3mm
RS-stocknr. 165-7641
FabrikantnummerX0402MF 1AA2
€ 0,519
Each (In a Bag of 250)
Aantal stuks
0.9A SCR TO-202 600V 33A Through Hole 0.2mA 0.8V 5mA 3 10.1mm 4.5mm 7.3mm 10.1 x 4.5 x 7.3mm
RS-stocknr. 905-6074
FabrikantnummerSKT 16/16 E
FabrikantSemikron
€ 18,50
Each
Aantal stuks
18A SCR A 46 1600V 2000A Thread Mount 150 (Min)mA 3 (Min)V 250mA 7 93mm 20mm 30mm 93 x 20 x 30mm
RS-stocknr. 165-9778
FabrikantnummerBT151S-800R
€ 0,421
Each (On a Reel of 2500)
Aantal stuks
7.5A SCR DPAK (TO-252) 800V 132A Surface Mount 15mA 1.5V 20mA 3 6.73mm 6.22mm 2.38mm 6.73 x 6.22 x 2.38mm
RS-stocknr. 792-0718
FabrikantnummerBT151S-800R
€ 0,463
Each (In a Pack of 10)
Aantal stuks
7.5A SCR DPAK (TO-252) 800V 132A Surface Mount 15mA 1.5V 20mA 3 6.73mm 6.22mm 2.38mm 6.73 x 6.22 x 2.38mm
RS-stocknr. 169-5957
FabrikantnummerT90RIA60
FabrikantVishay
€ 29,88
Each (In a Box of 10)
Aantal stuks
90A SCR D 55 600V 1870A Panel Mount 120mA 2.5V 200mA 3 41mm 27mm 25mm 41 x 27 x 25mm
RS-stocknr. 395-9214
FabrikantnummerVS-T90RIA60
FabrikantVishay
€ 34,11
Each
Aantal stuks
90A SCR D 55 600V 1870A Panel Mount 120mA 2.5V 200mA 3 41mm 27mm 25mm 41 x 27 x 25mm
RS-stocknr. 194-827
FabrikantnummerN0992YS020
FabrikantIXYS
€ 133,44
Each
Aantal stuks
992A SCR - 200V 12100A Stud 150mA 3V 500mA 3 - - 15.1mm 42 (Dia.) x 15.1mm
RS-stocknr. 700-5119
FabrikantnummerVS-VSKT91/16
FabrikantVishay
€ 41,54
Each
Aantal stuks
95A SCR TO-240AA 1600V 2094A Panel Mount 270mA 4V 250mA 7 92mm 22.6mm 30mm 92 x 22.6 x 30mm
RS-stocknr. 168-7875
FabrikantnummerTYN608RG
€ 0,911
Each (In a Tube of 50)
Aantal stuks
8A SCR TO-220AB 600V 100A Through Hole 15mA 1.3V 30mA 3 10.4mm 4.6mm 15.9mm 10.4 x 4.6 x 15.9mm
RS-stocknr. 166-0476
FabrikantnummerBT148W-600R
€ 0,20
Each (On a Reel of 1000)
Aantal stuks
0.6A SCR SOT-223 (SC-73) 600V 11A Surface Mount 0.2mA 1.5V 6mA 4 6.7mm 3.7mm 1.7mm 6.7 x 3.7 x 1.7mm
RS-stocknr. 123-1466
FabrikantnummerFS5030QP00TU
€ 2,354
Each (In a Pack of 5)
Aantal stuks
50A SCR TO-3P 1200V - Through Hole 80mA - - 3+Tab - - - -
RS-stocknr. 436-8114
FabrikantnummerBT152-800R
€ 0,94
Each (In a Pack of 5)
Aantal stuks
13A SCR TO-220AB 800V 220A Through Hole 32mA 1.5V 60mA 3 10.3mm 4.7mm 9.4mm 10.3 x 4.7 x 9.4mm
RS-stocknr. 165-2992
FabrikantnummerVSKT91/16
FabrikantVishay
€ 44,351
Each (In a Box of 10)
Aantal stuks
95A SCR TO-240AA 1600V 2094A Panel Mount 270mA 4V 250mA 7 92mm 22.6mm 30mm 92 x 22.6 x 30mm
RS-stocknr. 395-3474
FabrikantnummerVS-50RIA120
FabrikantVishay
€ 20,71
Each
Aantal stuks
50A SCR TO-65 1200V 1490A Thread Mount 100mA 2.5V 200mA 2 19.2mm 17.35mm 42.5mm 19.2 x 17.35 x 42.5mm
RS-stocknr. 687-0940
FabrikantnummerP0102BL 5AA4
€ 0,533
Each (In a Pack of 10)
Aantal stuks
0.16A SCR SOT-23 200V 7A Surface Mount 0.2mA 0.8V 6mA 3 2.9mm 1.3mm 0.95mm 2.9 x 1.3 x 0.95mm
RS-stocknr. 170-2399
FabrikantnummerFS5030QP00TU
€ 2,139
Each (In a Tube of 30)
Aantal stuks
50A SCR TO-3P 1200V - Through Hole 80mA - - 3+Tab - - - -
RS-stocknr. 810-3693
FabrikantnummerTYN608RG
€ 0,911
Each (In a Pack of 10)
Aantal stuks
8A SCR TO-220AB 600V 100A Through Hole 15mA 1.3V 30mA 3 10.4mm 4.6mm 15.9mm 10.4 x 4.6 x 15.9mm
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